54487751 has 4 divisors (see below), whose sum is σ = 55754952. Its totient is φ = 53220552.

The previous prime is 54487733. The next prime is 54487789. The reversal of 54487751 is 15778445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15778445 = 5 ⋅3155689.

It is a cyclic number.

It is not a de Polignac number, because 54487751 - 2¹⁸ = 54225607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54487699 and 54487708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54487351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633536 + ... + 633621.

It is an arithmetic number, because the mean of its divisors is an integer number (13938738).

Almost surely, 2^54487751 is an apocalyptic number.

54487751 is a deficient number, since it is larger than the sum of its proper divisors (1267201).

54487751 is a wasteful number, since it uses less digits than its factorization.

54487751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267200.

The product of its digits is 156800, while the sum is 41.

The square root of 54487751 is about 7381.5818765357. The cubic root of 54487751 is about 379.1109200712.

The spelling of 54487751 in words is "fifty-four million, four hundred eighty-seven thousand, seven hundred fifty-one".